Air conditioner



FIG. 1 is a front, right side and bottom perspective view of an air conditioner showing our new design,

FIG. 2 is a front elevational view thereof,

FIG. 3 is a rear elevational view thereof,

FIG. 4 is a top plan view thereof,

FIG. 5 is a bottom plan view thereof, and

FIG. 6 is a right side elevational view thereof, the left side view being a mirror image of the right side view. 

The ornamental design for an air conditioner, as shown and described. 